Jeremie's latest attempt at finding Aelita's antivirus has failed. Yumi and Ulrich come into the Lab to check up on him. They try to assure him that decoding Franz Hopper's diary and finding Aelita's antivirus is only a matter of time, but Jeremie says he's made no progress at all. He starts asking himself if he's up to the task. Ulrich tells Jeremie that he needs a break and that the perfect way to do that is to watch Odd's short film that night, which no one at school has seen.That night, Milly and Tamiya are interviewing Sissi about her role in Odd's upcoming film. Sissi talks about how the film will reveal to the world how great she is. When the subject is changed to the plot of the film, Sissi stalls for a moment and starts saying it's a romance, thriller, drama, and comedy, all in one. When Milly sums it up saying, "So you have no idea...", Sissi makes up an excuse and runs off. Later that night, everyone is guided into a large room with seats - the auditorium. The older man at the front of the room welcomes them to the Kadic Academy Cinema Club's Short Film Night. The first film to be screened is Odd's, titled Natural Grandeur. The film begins with Odd running down the halls of the Dormitory Building, screaming: "She's awake!!!" He is stopped by a kid version of Jim, played by Romain Le Goff. Jim, thinking Odd has lost his mind, starts taking him to the Infirmary. When they're outside, they are confronted by a giant Sissi. The giant Sissi breaks her nail as she advances towards them. Sissi, disgusted by her role in the film, stops the film and begins to yell at Odd, who was watching the whole time. A Spectre sneaks up behind her and enters her body. Sissi starts talking to Jeremie incoherently. Jim takes Sissi to the Infirmary while Principal Delmas directs the students to their dorm rooms. Yumi's assumption is that XANA is responsible.Jeremie's Superscan can't detect any activated towers, ruling out XANA as the culprit. The newest updates from the Infirmary report that Sissi was electrocuted. Later, when everyone has gone to bed, Jeremie is awoken by the creaking of the door. He opens his eyes to see Sissi (who should be in the Infirmary and dressed in her night clothes) still talking gibberish to him. Sissi walks over to Jeremie's desk and starts writing something down. Jim, making his nightwatch rounds to be sure that the children are okay, comes in and takes Sissi back to the Infirmary (although not shown, he presumably puts her to sleep and later calls 999 when she doesn't wake up). Jeremie picks up the piece of paper; on it is yet more gibberish.
The next morning, Ulrich is awoken by a call from Jeremie, telling him to get down to the Factory. There, Jeremie tells everyone that Sissi gave him an encoded message. He has decoded it on the Supercomputer during the night, revealing the statement: "I can help you." Jeremie deduces that someone is trying to contact them through Sissi, but not XANA. If it was XANA, she would have tried to capture Aelita. To know who is talking through Sissi, they will need to talk to her again. Odd and Yumi go back to Kadic to retrieve Sissi while Ulrich and Aelita scout around Lyoko to make sure XANA isn't up to something. Ulrich and Aelita emerge in Lyoko's Forest sector, along with the Overbike. They hop aboard and speed off. Odd and Yumi go through the Sewers and come out in the Park. When they get to the Administrative Building, they see Sissi being put into an ambulance. The ambulance drives away as Odd calls Jeremie to tell him of this unforeseen development. Jeremie tells them that they have to get to the hospital to get Sissi. Yumi asks Odd: "Are you thinking what I think you're thinking?" Odd replies: "Yeah, good thinking."
On Lyoko, Ulrich asks Jeremie if the Superscan has detected anything. Jeremie says no and asks why. Aelita sends him a visual of a glowing white tower. As the two race towards the white tower, two rolling Megatanks are coming up behind them. Even at top speed, the Overbike is being outpaced by the Megatanks. Aelita tells Ulrich to turn left, but there's nothing to the left. Aelita uses Creativity to generate a small piece of land, which Ulrich drives out on to get out of the way. The Megatanks ignore them and continue to the white tower. There, the Megatanks start firing at the tower.
At the hospital, Sissi's heartrate is low. The nurse assures Mr. Delmas that they will keep her under observation for a few more hours. Mr. Delmas walks out into the Waiting Room and pops a euro into the vending machine as Odd and Yumi walk past. In the Lab, Jeremie's Superscan detects an activated tower. He calls Yumi and Odd who are in the hallway of the hospital and tells them. Suddenly, screaming can be heard from Sissi's room. The two burst in to see the nurse, with the Eye of XANA flickering in her eyes, trying to kill Sissi. The nurse grabs Yumi, but she is stopped momentarily by the defibrillator, being wielded by Odd. Odd and Yumi then put Sissi on a wheelchair and start taking her out of the hospital.
On Lyoko, Ulrich and Aelita drive over to the tower, where Ulrich destroys one Megatank. The other one curls up into a ball. Ulrich is faced with a dilemma: either deactivate the activated tower or protect the white tower. Jeremie decides that Ulrich should protect the white tower, but Aelita speeds off on the Overbike, towards the activated tower. Unfortunately for Ulrich, two more Megatanks have arrived.
Odd and Yumi are running across the bridge to the Factory with Sissi. The possessed nurse rounds the corner with an ambulance and tries to run them down, but the three dive out of the way as the ambulance drives off the edge and crashes onto the Factory Floor. Sissi gets up and uses the rope to get to the elevator. On Lyoko, Ulrich is using Super-sprint to get around the three Megatanks. He runs out of the way as one Megatank fires its laser, pushing another one off the edge, into the Digital Void. As the elevator comes up the shaft, the nurse climbs out of the wreckage of the ambulance and flings a tire rim like a frisbee. The tire rim actually becomes embedded inches into a steel column. The elevator door opens up and the three get inside. As the elevator begins to descend, the nurse punches a hole to try to get inside, but she fails. On Lyoko, Ulrich uses Triplication to destroy another Megatank. In the elevator, a thud is heard as the elevator stops at the Lab. Yumi goes back into the elevator to slow down the nurse. Sissi walks over to Jeremie's computer and starts typing.
In the Ice Barrier, Aelita is approaching the activated tower when a laser knocks her off. Jeremie tells Odd to get to Lyoko to help her. In the elevator, the nurse opens the hatch at the top of the elevator. In the Ice sector, Aelita is surrounded by three Crabs. In the Forest, Ulrich tries to stop a laser from the last Megatank with his katana, but it fails him and he is devirtualized. The same laser strikes the tower, causing it to shut down. In the Lab, Sissi suddenly stops typing and slumps unconscious. Odd enters Lyoko's Ice sector, along with the Overboard. Meanwhile, the Scyphozoa arrives to take Aelita's memory. Luckily, Odd comes and destroys one Krab. Using the Overboard, Odd takes Aelita to the activated tower. Ulrich goes up to the Factory Floor to help Yumi fight the nurse. Aelita deactivates the activated tower as the nurse was about to electrocute Ulrich and Yumi.
Later on, Jeremie is in a big hurry, running towards his dorm room. The door opens in his face and he sees his friends and Sissi. He asks Sissi if she's alright. Sissi replies: "How do you expect everything to be okay when I'm surrounded by big, fat losers!?" She then walks away. Jeremie asks his friends what's going on. Ulrich tells him that Odd offered Sissi a role in his next film, which is about "a girl, driven by a mysterious being, who tries to make contact with humans, all of which takes place in a virtual universe full of danger". Sissi's response was: "No one would ever believe such a ridiculous story." He tells them that he deciphered Sissi's message. He puts a CD into his computer and plays the audio. It says: "I can help you. I want to enter into contact with you now. I am Franz Hopper."
This episode contains examples of:
- Are You Pondering What I'm Pondering?: This exchange:Yumi: (after hearing that Odd has a plan) Are you thinking what I think you're thinking?
Odd: Yeah, good thinking. note - Body Surf: XANA uses a hospital nurse in an attempt to kill Franz!Sissi, and later goes after Ulrich and Yumi when they free Franz!Sissi from the hospital and get her to the factory.
- Cassandra Truth: Odd's second short film that he proposes to Sissi is based on the events on the series:"A girl, driven by a mysterious being, who tries to make contact with humans, all of which takes place in a virtual universe full of danger".
- Destruction Equals Off-Switch: A virtual-world example. As soon as the white tower is destroyed on Lyoko, Sissi slumps over onto the keyboard.
- Formula-Breaking Episode: XANA isn't on the offensive because of mischief he's causing on earth, rather a Franz Hopper spectre has taken over Sissi, and XANA really dislikes him using the towers to contact the team.
- Gosh Darn It to Heck!: Jeremie asks "What the heck's this white tower supposed to be?!" when Aelita gives him a visual.
- I Need to Go Iron My Dog: Sissi pretends to hear a phonecall after Milly and Tamiya point out that she doesn't know what the film is about.
- Know-Nothing Know-It-All: Sissi gets interviewed by Milly and Tamiya about her role in Odds short film, and basically rattles off every single category she can think of. Tamiya points out that she basically has no idea what the film is, and Sissi makes an excuse for a hasty exit.
- Oh, Crap!: XANA is desperate for the white tower to go away that he doesn't try and fight Ulrich at first. It's only until he intervenes with his plans that he starts fighting them.
- Oblivious Mockery: Used by Sissi in response to Odd's second play idea about a virtual girl in a virtual world trying to get in contact with earth.
- Right for the Wrong Reasons: Pretty much everything Sissi says to Milly and Tamiya is actually true, but the comedy is at her expense, and the satire is mostly aimed at the show itself (as well as Jim constantly taking people to the infirmary).
- Self-Parody: Odd's first short film comes off as this, exaggerating the voice of Jim, mentioning "the infirmary" as where to go to get Sissi better, and really inflating Sissi's ego to monstrous proportions. Jim seems to be a bit unhappy with the mockery, but later cools down, but Sissi doesn't like it. The second short film Odd wants to make is basically a cliffnotes version of the show itself, and Sissi exclaims that It Will Never Catch On.
- Shock and Awe: The powerset used by the XANA!Nurse, much like all the other times he's done this.
- Super-Persistent Predator: The XANA!Nurse, as per usual for anyone under his control. He even punches a hole in the lifts' door in an attempt to stop them.
- Vocal Dissonance: When Sissi's backwards-speak is translated, it uses Franz Hoppers' voice.
- We Need a Distraction: Yumi offers herself up to be a distraction so that Odd and Ulrich can help Aelita deactivate XANA's tower.
- Wham Episode: This is the first episode where Franz Hopper is revealed to be able to help the team, and actually kickstarts the plot because of it.
- Wham Line: What Sissi says in reverse is actually: "I can help you. I want to enter into contact with you now. I am Franz Hopper." Aelita repeats it, questioning it.
- You Can't Thwart Stage One: XANA succeeds in destroying the white tower, so it's up to the gang to deactivate XANA's tower.
